Kratom and Other Mitragynines

Opioids such as morphine, codeine, and oxycodone are extracts or analogs isolated from a single source: the opium poppy. For a long time, it was believed to be nature''s only source of opioids. But it now appears that biological diversity has evolved an alternative source of opioid compounds-those derived from the plant Mitragyna speciosa. This plan